Valve for compressed-air transom-operators



F. H. HARDON.

VALVE FOR COMPRESSED AIR TRANSOM OPERATORS. APPLICATION FILED ocr. 20. 1915.

Patentd Dec. 7, 1920.

2 SHEETS-SHEET 1.

F- H. HARDON.

VALVE FOR COMPRESSED AIR TRANSOM OPERATORS. APPLICATION FILED OCT. 20. 1915.

1 361 381; 7 Patented Dec. 7,1920.

. 2 SHEETS-SHEET 2.

FRANCIS H. HAQRDON, OF NEVJ YORK, N. Y., ASSIGNOR or own-HALF ro FRANK PALLADINO, OF NEW YORK, N. Y.

VALVE FQR COMPRESSED-AIR, TRANSOM-OPERATORS.

Specification of Letters Patent.

Patented Dec. 7,1920.

Application filed October 20, 1915. Serial No. 56,982.

To all whom it may concern:

Be it known that 1, Farmers H. HARDON, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Valves for Compressed-Air Transom-Operators; and I do hereby declare the following to be a full, clear, and exact description of the invention such as will enable others skilled in the art to which it appertains to make and use the same.

The invention relates to improvements in transom operating devices.

The object of the present invention is to provide an improved valve of simple, practical and comparatively inexpensive goonstruction for controlling the admission of air to and the escape of air from a cylinder, in which is pivotally mounted a piston adapted to be attached to a transom operat: ing mechanism so as to enable atransom to be easily opened or closed without manual labor and by simply operating a push button. 7

With these and other objects in view the invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings and pointed out in the claims hereto appended, it being understood that various changes in the form,

proportion and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

1n the drawings Figure l is an elevation of the device constructed in accordance with this invention and shown applied to a door frame and transom. j

Fig. 2 is a vertical sectional view taken substantially on the line 2-2 of Fig. 1, the transom operating device being shown in elevation,

Fig. 3 is mechanism, 7

Fig. 1 is a central vertical sectional view through the actuating mechanism showing the valves in position for raising the piston.

Like numerals of reference desiginate corresponding parts in the several figures of the drawings.

In the accompanying drawings in which is illustrated the preferred embodiment of an elevation of the actuating" the invention, 1 designates a transom hinged at the top at 2 and provided at the bottom at one end with a horizontally projecting arm 3 having an inner attaching portion 4 secured by screws or other suitable fastening devices to the transom as clearly shown in Fig. 1. The horizontal arm 3 which extends outwardly from the transom is con nected by a link 5 with a rod 6 operating in a guide 7 and actuated by the means hereinafter described for opening and closing the transom. The guide which may be of any preferred construction is mounted on the exterior of the door frame or casing 8 and the vertically movable rod or member 6 extends above and below the horizontal arm 3. The link 5 which extends downwardly and inwardly from the horizontal arm 3 is pivoted at its upperand lower ends 9 and 10 to the said arm 3 and to the vertically movable rod or member 6.

The vertically movable rod 6 is suitably secured at its lower end by nuts 11 or other" suitable fastening devices to a horizontal arm 12 which is carried by a vertically movable piston rod 13. The piston rod 13 which extends upwardly from a piston head 14: is secured at itsupper end in an opening in the inner end'ofthe arm 12 by a suitable fastening device 15 and the cylinder 16 in whichvthe piston operates is provided with upper and lower attaching lugs 17 and is arranged within the door frame or casing ,as clearly shown in Fig. 2 of the drawings.

The cylinder which may be of any preferred construction is provided at the upper end adjacent to the head 18 with a vent opening 19 for' the escape ofair when the piston moves upwardly and to admit air to the cylinder when the piston moves down wardly. The piston is equipped with suitable packing rings and compressed air is admitted to the lower end of the cylinder through a small tube 20 connecting the cylinder with a valve casing 21 arranged vertically and connected at it's lower end with a compressed air supply pipe or tube 22'.

The valve casing is provided with an up per exhaust 'or outlet'opening 23 and it has a valve seat 24 formed in a partition 25 and receiving a valve 26 which controls the exhaust port or outlet. The valve casing is also provided with a feed port 27 formed in a partition 28 and receiving a valve 29 whichcontrols the admission of compressed vertically movable opened; The valves are air to the cylinder. The valve casing is providedat the back with threaded openings 30 located diametrically opposite the valve seat and normally closed by threaded plugs 31. The openings are adapted to afford access to the valve seat to enable the same to be ground and they permit the valve to be'introduced into and removed from the valve casing. The valves which are tapered are seated at the pressure side so that the pressure will hold the supply orinlet valve firmly against its seat when the exhaust valve is opened and will also operate to hold the exhaust valve firmly against its seat when the inlet valve is provided with stems 32 and 33 extending outwardly through flanged apertures of the valve casing and connected to the arms of a lever 3st which causes the valves to move in unison so that when one valve is openedthe other will be closed. The flanged apertures 35 are provided with caps 36 having suitable packing and the lever 34 is fulcrumed at 37 to the outer end of a horizontally disposed bracket arm 38 consisting of a pin and having its inner end 39 threaded into an opening in the front of the valve casing. The outer ends of the stems of the valves are equipped with suitable heads or buttons 4L0 and 41 which are designed in practice to bear a suitable word for indicating the char acter of the valve. The door frame or casing is provided at the valve casing with a face plate 42 having openings for the passage of the stems of the valve and at aptcd to be readily removed to afford access to the mechanism. 7

The valve is especially adapted or use in connection with transom operating devices for apartments, ofiice buildings, hotels and similar structures which are oftenprovided with air compressors and it will only necessitate an additional storage tank and pipe connections which may be exceedingly small as only a very small'ainount of compressed air will be necessary for swinging a transom upwardly and gravity'will re turn the transom to its closed position when the feed or supply valve is closed and the ex haust'orf outlet valve is opened. The pip ings may be easily concealed in the door frames or casings and the air discharged from the cylinder through the exhaust port may bepermitted to escapeat any point and need not .be piped to the outside atmosphere. Also the cylinder may be conveniently constructed' of heavy brass tubing or similar material and need not consist of a casting when it is desired to construct a cheap equipment.

While the transom is shown hinged at the top, it-may be pivotally mounted centrally of its ends similar to an ordinary transom.

lVhat is claimed is 1. A valve for controlling the admission of air to and its escape from the cylinder of a transom operating device, comprising a casing having a discharge'port at one end communicating with said cylinder and having an intake port at its other end, said casing also having an exhaust port in one of its side walls adjacent the discharge end thereof, a partition formed within the cac ing about the intake port to provide an air intake chamber, said partition being provided with an opening having a tapered wall to provide a valve seat facing into the intake chamber, a tapered valve head cooperating with said seat and adapted to be normally held to said seat by the air pressure within said intake chamber, a second partition formed in .the casing about said exhaustport to provide an air exhaust chant ber, said second partition being provided with an opening having itswall tapered to provide a valve seat facing into said casi' a second tapered valve head cooperating with said second valve seat and adapted' when said first valve head is unseated and air under pressure is in the casing to be held to its seat by such pressure, a val o stem connected to each of said valve heads, said valve stems passing through one side wall of the casing, and a connection between said valve stemsadapted, when one valve stem is moved in one direction, tomove the other valve stem in the reverse direction.

2.. A valve for controlling the admission oi compressed air to and its escape i'i'rom the cylinder of a transom operating device, comprising a casing having an inlet port, an outlet port and an exhaust port adjacent the outlet port, inlet and exhaust valves controlling the inlet and exhaust ports, each valve being adapted when closed to be held in such position by the air pressure within the casing, and a pivoted lever connected to the valves to cause one valve to be closed when the other is opened and to permit the air pressure against the closed valve 'to hold the othervalve opened.

In testimony whereof I ailix my signature in presence of two witnesses.

FRANCISH. HAll-DON.

Witnesses: JNo. Bozznrrs,

J OHN. Genera. 

